Health Library

Bilberry

Botanical name(s):

Vaccinium myrtillus, Vaccinium uliginosum. Family: Ericaceae

Other name(s):

blueberry, bog whortleberry, northern bilberry

General description

Bilberries are a type of blueberry found in Europe and the Northern United States and are closely related to the U.S. blueberry. Although the entire plant is used, the berries and their juice are the most commonly known. Historically, bilberry was used to improve eye disorders such as retinopathy, cataracts, and glaucoma. Bomber pilots in WWII would often eat bilberries before a flight in the belief that bilberries improved vision, particularly night vision.

Medically valid uses

Currently, there are no documented valid medical uses for bilberry.

Claims

Please note that this section reports on claims that have NOT yet been substantiated through scientific studies.

Bilberry fruit contains anthocyanosides (anthocyanidins), which may strengthen the capillary walls and therefore protect the blood vessels and reduce potential excess fluid in the body. Anthocyanidins are also natural antioxidants.

Bilberry has been claimed to alleviate night blindness, but scientific studies have shown that this is not true.

Bilberry is claimed to have a diuretic effect, increasing the production and elimination of urine from the body, and to be a urinary tract antiseptic and anti-inflammatory agent. Bilberry is also claimed to help control hypoglycemia (regulate insulin levels), alleviate stress and anxiety, and heal gastrointestinal ulcers. Bilberry is claimed to lower lipids (protect low-density lipoproteins from oxidative stress) and strengthen connective tissue. Some claims suggest that bilberry may also slow the progression of cataracts.

Dosing format

Bilberry extracts are available in tablets and capsules. Follow packaging instructions for correct dose.

Fresh berries or juice are safe to consume in normal quantities.

Side effects, toxicity, and interactions

Women who are pregnant or breastfeeding should consult a physician before taking any herbal medicines.

There are no significant food or drug interactions associated with bilberry.

Additional information

Click here for a list of reputable websites with general information on nutrition.

There is not enough scientific evidence to support the use of bilberry for any specific health condition.